(19)

(11)

EP 4 057 937 A1

(12)

(43) Date of publication: 21.09.2022 Bulletin 2022/38 (21) Application number: 20820670.6 (22) Date of filing: 12.11.2020

(51) International Patent Classification (IPC):  A61C 9/00(2006.01) G06T 7/50(2017.01) A61B 5/00(2006.01) A61B 5/107(2006.01) (52) Cooperative Patent Classification (CPC): A61B 5/0088; A61B 5/1077; A61C 8/0001; A61C 9/0053; G06T 7/33; G06T 2207/10028; G06T 2207/30036; G06T 17/00; A61C 13/0004 (86) International application number: PCT/US2020/060283 (87) International publication number: WO 2021/097128 (20.05.2021 Gazette 2021/20)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 12.11.2019 US 201962934438 P 11.11.2020 US 202017095659 (71) Applicant: Align Technology, Inc. San Jose, CA 95134 (US)	(72) Inventors: SAPHIER, Ofer 76086 Rehovot (IL) KOPELMAN, Avi Palo Alto, California 94306 (US) (74) Representative: Leach, Sean Adam  Mathys & Squire The Shard 32 London Bridge Street London SE1 9SG London SE1 9SG (GB)